Sorry to say but I have always dealt with commercial equipment such as Hobart, Biro, Berkel, Butcher Boy, etc. I've never heard of Weston.
    You may want to check these websites to see if they can help: 

            http://texastastes.com/
            http://www.home-processor.com/index.shtml
            http://www.dcprocessingequipment.com/
            http://kascocorp.com/default.aspx

 

Good luck,
Dave